import kotlin.reflect.jvm.internal.impl.descriptors.Visibilities;

public class A {
    }

    class Dog {
        String name;
        int age;
        int weight;
        public  Dog() {
            this.weight=12;
            this.age=12;
            this.name="liyue";
        }
        public  String gay(){
            return(this.name+this.weight+this.age);
        }
    }


